Machine gun



June 18, 1935. L..4A. CARRILLO v MACHINE GUN- Filed Jan. 16, 1934 ll Sheets-Sheet l lea vowed fer/2110 June 18, 1935 L. CARRILLO I MACHINE GUN Filed Jan. 16, 1934 ll Sheets-Sheet '2 Invenior Zeqv0/% xi arrzZ/a June 18, 1935. L. A CARRILLO MACHINE GUN Filed Jan. 16, 1934 ll Sheets-Sheet 5 [nvenfo'r A. CARRILLO 2,004,925

MACHINE GUN June 18, 1935.

ll Sheets-Sheet 4 Filed Jan. 16, 1954 Inventor Zea wide; A [2772210 L. A. CARRILLO 2,004,925

MACHINE GUN 7 Filed Jan. 16, 1954 l l Sheets-Sheet '7 a I nvenlol lEfl/Jld04 422-7710 June 18, 1935.

L. A. CARRILLO MACHINE GUN Filed Jan. 16, 1934 ll Sheets-Sheet 8 A. CARRILLO MACHINE GUN June 18, 1935.

Filed Jan. 16, 1934 ll Sheets-Sheet 9 Illlllllllllllllllll June 18, 1935.

1.. A. CARRILLO I 2,004,925

MACHINE GUN Filed Jan. 16, 1934 ll Sheets-Sheet l0 Invenlor MJ arr-127a June 18, 1935. CARRILLQ 2,004,925

MACHINE GUN le 1 1954 l Sheets-Sheet 11 Patented June 18, 1 935 Leopoldo A. Carrillo, Big Wells. Tex.

Application January 16, 1934, Serial No. 706,883

' 5 Claims.

This invention relates to improvements in machine guns and has as' its object the provision of such a gun that is adapted chiefly for air crafts and armor piercing purposes, provision being made for the discharge of a plurality of bullets or cartridges at each firing'of the gun.

The invention together with its numerous objects and advantages will be best understood from a study of the following description, taken in connection with the accompanying drawings wherein: I v

Figure 1 is a side elevational view of the gun.

Figure 2 is an enlarged fragmentary elevational view of a portion of the gun showing the position of the parts when ready for firing of the gun.

Figure 3 is an enlarged side elevational view of a magazinedisk with the cartridge cylinders in position'thereonj Figure 4 isa side elevational view of the with the cartridge cylinders removed.

Figure 5 is a view similar to Figure 4 of the opposite side of the magazine disk.

Figure 6 is an edge elevational view of the magazine disk. r

' Figures? and are sectional views taken substantially on the line ll and l0l 0 respectively disk . of Figure 3.

Figure 8 is an enlarged fragmentary view partly in section and partly in elevation showing the firing position of one of the cartridge cylinders on the magazine disk. v

Figure 9 is a detail sectional view taken sub stantially on the line 9--9 of Figure 4.

Figure 11 is an enlarged fragmentary elevational view showing the manner of looking a cartridge cylinder on the magazine disk.

Figures 12 and 13 are sectional viewstaken substantially on the lines I2-l2 and [3-43 respectively of Figure 11. V

Figure 14 is aside elevational view of one of the cartridge carrying cylinders.

Figure 15 is an elevational View of the opposite side of the cartridge cylinder. Figure 16 is an elevational view of one end of the cartridge cylinder." Q

Figure 17 is anielevational view of an opposite end of said cylinder. Y

"Figure18 is asectional View taken substantially on the line [8 -18 of Figure 15. e

Figure 19 is a plan view of an ejector plate. Figure 20 is an edgeelevational view thereof v Figure 21 is a plan view of acollar' hereinafter .morefully referredtto. p

igure' 22 is an'edge elevational view of the collar."

Figure 23 is a perspective view of one of the bolts for the plate shown in Figure 19.

Figure 24 is an elevational view of a finger piece or handle forjthe bolt shown in Figure 23. 1 1

Figure 25 is an edge elevational viewofithe fin-i ger piece or handle referred to above. I

Figure 26-is a perspective view'of a sleeve. hereinafter more fully referred to.. I

Figure 27 is a side elevationalvviewof the gun proper with certain parts removed. Y 1 Figure 28 is asectional viewtaken substantially on the line 28- 28 of Figure 1. f Figure 29is a plan view of a rotatable frame forming part of. thegun mounting. 1

Figure 30 is a sectional view .taken' substantially on the line 30-30 of Figure 2 9. i. 1.0

Figure 311s a side elevational ViBWOf a b'arsupported by the frame shown in? Figure 29. Figure 32 is an elevational view of the pedestal formingpart of the gun mount. 1 r Figure 33 is a fragmentarylenlarged sectional view showing the manner of rotatably supporting the cylinder magazine disk. .r 1' a Figure 34 is an elevational view of the support rack wheelsjforim'ng part of the spring motor;

- Figure 41 isa similar view of the other=ofl=the rack wheels forming part of said spring motor; Figure 42 is a perspective View of a 'reinforcing bar. 7 1'; Figure 43 is a plan vieW of the shaftfof-the spring motor. I Figure-44=is an elevational view of the: bolt assembly of the gun.

p I Figure 45 is'a sideelevational'view oftheouter cylinder of saidbolt assembly. 4 Figure 46 is an elevational view of the 'inner cylinder of said bolt assembly. 7 Figure 47 is an elevational View of the firing Figure 48 is an el'evati'onal view .of the' bolt shown'in Figure 23; 1.: a: I f

Figure 49 is anend elevational view of the firing pin, V U 9F: 1"... 3:": Figure 50 is aside view of the; cap for 'the'inn'er cylinder, certain partsof the-capbeing broken awayand shown in section. 1 Figure 51 is a sectional View taken substan tially on the line 5l- 5l of Figure 1. i

Figure 52 is an elevational viewofa spring pressed. plunger assembly forming part of the trigger mechanismof the gun.

Figure 53 is anelevational view taken at right anglesrto Figure 52. v

PATENT adjacent the braceor bracket I9.

Figure 54 is an elevational view of the cylinder of the said trigger assembly.

Figure 55 is an edge elevational view of a disk forming part of said assembly.

Figure 56 is a plan view of said disk.

Figure 5.7 is an elevational view of the plunger forming part of said assembly.

Figure 58 is a sectional view taken through the bolt and trigger assembly.

Figures 59 and 60 are sectional views taken substantially on the line 59-59 and Efi6ll respectively of Figure 58.

Figure 61 is a plan view of a stop lug carried by the firing pin.

Figure 62 is a sectional view taken substantially on the-line 6262 of Figure 53.

Referring to the drawings by reference numera-ls and to Figure .1 it .will be seen that the gun indicated generally by the reference numera1 l is mounted for rotative movement in a horizontal planeon a mount indicated generally by-the reference .numeral 2.

In the present instance the mount 2 comprises avpedestal 3. that atits. upper end, as clearly shown in Figure 8, is. provided with a pin 4 about :which is revolublea hub 5 secured in place through the medium of a nut 6. The hub 5 has extending therefrom arms 1 that project upwardly and are integral with the sides of a frame indicatedgenerally: by thereference numeral 8. For securing the frame 8 at the desired adjustmentthere is-providedon. the upper end of the pedestal 3 aflange 9 provided with a circular series of apertures and a flange N] on the hub 5-.that is.-apertured.to' register with a desired one of the apertures in the'fiange 9. For engagement :with alined apertures of the flanges 9 and I0 islasuitable pin H all of which is clearly shown in Figure 28. .--Mounted'.=transversely of the frame 8 at each end thereof is a pair of bolts I2 on which are slidably mounted grooved collars l3 that are resiliently held incentered position through the medium oficoilsprings M. A bar shown in Figure 31 and indicated by the reference numeral I5 extends longitudinally of the frame 8 and is provided on its :under side with notches it that engage the grooved collars 13 in a manner suggested in Figure 28. Between the ends thereof the: bar I5 is provided with a diametrically enlarged portion I! that fits within an aperture '8 .provided in :a brace. structure l9 provided for the barrel of the gun as shown in Figure "I. On one end. thereof the part l! is provided with a collar while the opposite end of the part I! is: threaded for reception of a nut- 2! whereby the bar I5 is securedto the bracket l9 against l'aterakm'ovement relative thereto as will be clear from a study of Figure 28.

It will thus be seen that with the gun mounted on the standard 3 the gun may be revolved to shoot in any desired direction.

There is also provided for the barrel portion of thei gun a brace bar 22 that'has a forked end straddling the post 3 and provided at said end with wing screws 23 operating in a circular groove 2:4 providedonthe standard 3. At its upper end the brace bar 22 is secured as at 25 to a lug 26 provided at thezunder side of the barrel of the gun 7 Through the medium of the-brace 22 the gun is secured against swingingrelative to the bar l5 as an axis.

In accordance with the present invention the gun comprises a:-barrel 25 connected with a breech 26 through the medium of an integral stock 27 and the rear end of the barrel is spaced from the breech 26 as clearly shown in Figure 27. Secured to the breech Z6 is the stock 21 and the breech 26 is provided with a suitable trough for accommodating the bolt assembly of the gun. Bridging the breech-slot thus formed is a reinforcing bar 89. I

The bolt assembly comprises, as will be clear from a study of Figures 45 to 50 an outer cylinder 28 which slidably fits Within the breech 26 and is provided with the usual lever 29 that is engageable in a notch 38 provided on one side of the breech for holding the bolt in its forward position. The cylinder 28 is open at each end and has slidably mounted therein an inner cylinder 3| which is closed at its inner end, and is provided at its outer end with a cap 32 screw threadedly engaged therewith. At its closed end the bolt 3| is provided with an opening which accommodates the shank of the firingpin 33. Disposed on the inner end of the shank of the firing pin is a coil spring 34 which at one end impinges against the closed end of the cylinder 3 l, and at its other end impinges against a washer and nut assembly 35 provided on the inner end of the shank of the firing pin 33. The firing pin 33 is also provided with an enlarged head 36 equipped on its free end face with a series of projections 31. The number of projections 3? correspond to thenumber of bores 33 provided in the gun barrel 25. In the present instance I have shown the gun barrel as provided with ten bores 33 nine of which are arranged in a circular series and the tenth one of which is arranged centrally and axially of the barrel. The projections 3'! are arranged on the end 350i the firing head in substantially the same manner as the bores 38am arranged there being one projection 3'! for each bore 38.

For limiting movement of the firing pin 36 there is provided a lug 39 that is suitably secured to the head 36 of the firing pin and operates in a slot 40 provided in the cylinder 28. I

As shown in Figure 58 the cylinder SI of the bolt is provided with a cam like lug M that operates in a slot 42 also provided in the cylinder 28. Cooperable with the lug ll is a trigger mechanism that is suitably mounted in the breech of thegun and includes a cylinder 33 in which is slidably mounted a plunger 44 provided on its upper end with a cam like lug 45 complemental to the lug ll and engageable therewith for holding the cylinder M in a retracted position. The plunger 4 is normally urged upwardly relative to the cylinder it through the medium of a coilspring 46 clearly shown in Figure 58. The trigger per se is indicated by the reference numeral 41 and is pivotally mounted as at 48. The trigger 4'! has an end 49 that operates in asuitable slot provided in the cylinder 43 and in an aperture provided in the plunger 44 in a manner, when the trigger 4'! is pulled, to move the plunger M downwardly against the action of spring 46 to release the cylinder 3|. As is apparent upon release of thecylinder 3! coil spring 3 3 will expand to forcibly move the cylinder 3! to the right in Figure 8 in a manner to forcibly engage the head 35 of the firing pin to effect a firing of the gun. In loading the gun the cylin- 31 to the right in Figure 8 in a manner to forcibly spring 3 to engage the cam lugs 41, 45 as shown in Figure 8 to secure the gun in'a cocked condition.

-The breech 28 is provided'with a depending extension 55 between which and part l9a of the bracket I9 is supported a shaft 5i which latter has a threaded end screw threadedly engaged in an aperture providedinl e extension some a second "end"-e xte'ndir-ig through a suitable aperture provided in the bracket extension} 5 I 9w; and at said end is equipped with suitable' -nut" means 52* to secure the shaft "in I I 5 position. Revolubly mounted ontheshaft 5 I 54; Q'Asfis' cleartheidisk'fi dperates inthe breech slot between the-b'arrel 25 andthe breech 26 and isfprovidedfor successively bringing the cartridgealiiii ng wflth the barrel 25" and "the cylinder 28 con'imodating' the cartridge holders or cylinders 55:

v springs: that'at oneen'dbears againstthe slidable sonar 5 63 'enjga dedi yi hte' ralisha ikibiei will op'rate in the"s1ot '51"and serve cream-the colla j 53 againstrotativemovement;

disk55isprovidedwitha ciroiilargroove 5 which i accommodates a retaining ring iifi that is suitably halts 69? It wil1'thus"be seenjthat the springs 62 e efitsd n v. .j. 'mannersuggestedin Figure herein it will be arenonfinedonlthesleeves I between'thefcollars .teandthe ring 6 6 djthe ringififi is' retained on the bo'lt's to between i 5 V threadedly engaged with'the bolts and thle adia'oeiit ends of the sleeves cl ta ljwillbe clear rqrriastudyof1 igure 9.

"Each of the "cartr" g' e holders 'or" cylinders-55 comprises 3 a circular or; cylindrical body having ajseries h'fbores BBprd ded therein and arranged to correspondvv'ithfthe arrangement of the bores 1 n a for lsecuring"each h de 55, it l Also; at jone efnd't H v' ed ith'a rad al? .J

a disk53 theholder '55is'iritroduced intoits recess56 laterallyfrom one side of the disk, namely 75 i the side of the'disk equipped with the lug 59. As

shown in Figure 8 inthe placing of the holder what inay-be termed a 'revolublelmagazine or diski 53 that is suitably apertured'd to accommodate 1 the shaft 51 and *is prdviddihsaid aperture with suitable bearings 'In the pres t "stance the disk 5s is p'rovide'd" tits within its 'recess 56l 55 rm the disk 53 the shank'lZ associated therewithf will be accommodated in the slot 51 while the-"head '13 of the shank will clear the'lug 59 and move into the groove 58 to engage about the sleeve 5I as-also shown in Figure 8; The manner of engaging the ho1der=55 with the disk 53 and within-its seat 56 will be clear from the above :When considered in conjunction WithFigureJiBI t When all of the holders 55 have been placedon the disk 53 there is applied to the disk 53 onthe sidesthereof equipped with the lugs 59 an ejector plateM that is accommodated in asuitablere- 4 cess provided'in' said sideofthe disk 53. This plate HI at its edges issuitably notched as at T5 and is also suitably provided centrally thereof as at 16 to engage behind the flanges of the head of thecartridges 69 in a manner suggested in Fig ures 3 and 10 so that upon movement of the plate 'l l away from the holder '55,-or to the dotted line position shown in Figure 10an ejection of all the empty shells will be easily effected.

The disk-M is provided at opposite sides thereof with apertured lugs with whichare engaged e1on-' gated bolts 11 that are accommodated ingrooves l8providedonthe periphery of the ho1der,55.

Screw threadedon'the free ends of the bolts 11 are handle or finger pieces 80 whereby the bolts 11 and the plates 14, screw'threadedly engaged with the bolts, may be moved to the'position shownin' Figure 10 for ejecting the cartridges. The plate 14 is normally urged into engagement with the holder 55 through the mediumof coil springs 19 disposed about the bolts 11 Within the grooves 18 and bearing at one end against the handlepieces 8 0. Straps8l are provided at one end of the slots 18 and the handle pieces 80 are normally engaged with the straps through the medium of the coil springs 19 as also willbeclear'froma study ofFigure 10. i

For locking the individual holders 55 on the disk 53 thereis' provided on the disk, on one side there'- of -fo rfach of the holders 55 jalatch-which'ineludes-a casing 82, a spring pressed bolt 83 projectable' outwardly of'the casing and'a keeper 84' alin'ed with a bolt casing and with which the-bolt 83f is engage'able as shown in Fi gures 11 and 12. These latchdevices are mounted so that the bolts r 83 thereof bridge the slots' 5! and as shown in Figure 2 the projections 12 of the members- 55 bear against the bolts 83. For revolving the disk 53, tosucceSsiVeIy bring the'cylinders 55 carrying the charge into position for firing purposes there is provided a spring niotor indicated generally :by the reference numeral 85'. The spring motor 85 ismounted beneath the breech 26 and includes as clearly shown in Figures land 36to 41' inclusive a two-part casing 86 secured togetherby bolts81 and between the meeting'ends of the sections of the casing" is arranged a partition disk 88 Provided in the ends of the casing are bearings-and journaled within these bearings are elongated hubs 90,9l, and with which are in-V A shaft 94 has a diametrically enlarged end journalled in a bracket tegral ratchet wheels 92, 93.

extension 50a depending from the breech 26 and the other end journalled in the hub of the ratchet wheel 93' as shown in Figure 36 This ratchet Wheel 93 has a hub extension 95 that is journalled in a bracket extension '50bthat also extends downwardly from the breech 26 opposite the ex tension 50a, 5 Mounted in the the partition 88 are springs 96 which at one end are suitably secured to thehubs 90, 9! and at an opposite end secured to the casing 86. To precasing 86 at opposite'sidesof ject beyond the forward" end of the cylinder 28- vent retrograde movement dogs :91 arepivotally: mounted on the bracketiextensionsfiflw, 50b and engage'the ratchet wheels 92 93; as shown in Figure- 36. For rotating the casing 86 to Windthe springs 96 there is provideda suitable handle 98- thathas screw threaded engagement with thehub extension of the ratchet wheel 93.:as also shown inFigure36. a 1 .i

On theenlargedend thereof the shaftlll is provided with a gear 9% that is in mesh with a=gearlflil whichis securedto one side of thedislr 53 through .the medium of bolts I0 I as shown in Figcomes into alinement with the barrel thus PIE? venting further rotation of the'disk 53.; To ac.- c'ommodate thefiange H32 each holder 55 atits; forward end'is'formed toprovide a groove )3. into which flange I02 is received when the carrier is moved forward aswill -hereinafter appear in: theoperating of the gun. v I

In operating the gun it will be apparent that when a holder 55 is brought into alinement with thebarrel of the. gun,:by properly manipulating. the lever 29 the cylinder, zsis moved f orwardly and by engaging the lever 29 in.the notch-30 is held 'in forward position. Upon movement of v the cylinders;28=forwardly the front end thereof. willengage the holder 55 moving the holder-forwardly from'the position shown in Figure 1. to the position suggested in Figure '2 so that the endsof the cartridgeswill pass into the bores of .the barrel.

The trigger mechanism. and thepartsof the. bolt are then in the positionsho n-in-Figure 8,3

- Obviously by pulling on the trigger 521 to move the plunger ll thereof downwardly cylinder 3! ofthe bolt is released and under action of spring 34= will move vforwardlyor to the rightin Figure 8' toffo rcibly. contact the headi36' or the firing in causing saidhead 35 to move forwardly: andpro forbringing the protuberances 31 onthe firing. pin into forcible contactwith the cartridges resulting.

- in a discharge of the gun;

When the gun has been thus fired theoylinder 2850f the bolt is retracted whereupon the holder. 55kwithin the breech-slot of the gun will rnove. to theposition shown in Figure 1 underthe actionof the spring 62 so thatthe disk 53 is then free to revolvein a'clockwise-direction for :bringing the next successive holder :55'into position in alinement with the barrel'of the gun for subsequent firing thereof. I 1

It will be: apparent that during the operation of the gun'loading of the disks-33'can'be accom-,.

plished by removing the cylinders 55 whose charges have been fired andreplacingthem with properly charged cylinders.

It will also be apparent that an emptying of;

'= aholder 550i the empty shells can be readily ace complished by manipulating the handles tllltoy effeet sliding'of-the same toward the left in Figure 10 to move the plate l4-toward.thedottedline ,po

sition suggested in said figure to ej ect-theshells.

,Having; thus described my invention, whatI claim asnew is-z 1'. In a; gun, of. the class described, ,a :revolubly mounted'magazine disk :provided. on its periphery with ascries-of sarcuate recesses, a- -grooveinwardly. from each-of the recesses and a slot connecting eachgroove with its recess,- and cartridge holders arranged. within said recesses, each cartridge holder being provided with a projection extending into said slot; andan-enlarged head on 1 said projection extending-into the groove for holding. the

cartridge holdenin position on the-magazine disk.

2. In a machinegun, and in-combination, a-revoluble magazineprovidedwith a recess in its periphery; a-groove inwardlyfrom-said recess, and. a sloticonnectingthe groove and recess, anin-v teg-ral lug at one endiof-the groove, a bolt connected at.one end.-withlthe lug: and-extending longitudinally. ofthe groove, a spring disposed aboutsaid: bolt,. a cylindrical cartridge holder adapted to fit :within said .recessand provided with a projection :operatingin said slot, said projection having an arcuate head straddling the bolt within2the 'g-roove,.means atrone end-of the-magazine and extending-.acrossthe adjacent endot the groove to prevent displacement of z the cartridge. holder laterallyat one side of I the magazine, and.

latch means-iatthe' oppositeend of the magazine and including abolt projectableacross saidslot and againstwhich theprojection on the cartridge.

holder isyengagedlfor securing:the,holderl on the,

magazine against lateral displacement.

.3. In a'machine gun, a revolublemagazine.pro-

vided on its periphery with, av circular, seriesv of relativelyspaced grooves, and a series of .cylindrical cartridge holders carried by the. disk, each:

cartridge holder bein provided onv its periphery witha projectionislidably fitting. inagroove in the magazinedisk. I

, 4'.- A cartridgeholder of the character described comprising a cylindrical body. havinga series of:

bores for accommodating the cartridges, an ejector plate atoneendof the holder having notched portions engageable with the flanged headsof the cartridgesfor ejecting. theshells upon: movementv of the plate in adirection away from .theholder, and spring devices engaged with the. plate andthe holder-"for releasably retaining the plate in. con-.. tact with one end of the holder. with .thenotches. of theplate engagingth'e saidzflanged heads of;

the cartridge shells.

provided -.in theperiphery: thereof with. a. series ofgrooves, .an ejector: plate-provided withia plu-- rality of notched pbrtionsengagingthe flanged heads of the,.cartridge shells for. ejecting the shellsfof exploded cartridges, saidlplate' being also v provided with .lugs, boltsextending through the lugs; and into the grooves of thecartridge, holder, said boltshaving. threaded. ends. screwed into-the lugs on the plate, handle members on the free ends-of: the .bolts operating inthe groovesfof the cartridge. holder, andsprings disposed about the bolts within the. groovesand bearing. on the handle pieces-for normally urging. the bolts in-- wardly .of..the grooves and the platein contact with an end ofjthecartridge holder. LEQPOLDOT A. ,CARRILIJO. 

